UDI U830 2.4G 4CH 6 Axis Gyro 360-Degree Rotating Hand Sensor RC Quadcopter RTF Black&Orange Brand: UDI . Model: U830 . Main Rotor Diameter: 1.97" / 50mm . Speed Control: Integrated . Required Radio: 4Channel . Frequency: 2.4GHz . Flight Time: Approx. 8-10 minutes . Charging Time: 60 minutes . Battery: Rechargeable 3.7V 250mAh Lithium Battery . Transmitter Brand & Model: U830 . Transmitter Battery: 3 x AAA Batteries (Not Included). Control Distance: 80 meters . Body Material: Plastic . Color: Black & Orange . Dimensions: (4.33 x 4.33 x 1.57)" / (11 x 11 x 4)cm (L x W x H) . Weight: 11.28 oz / 320 g . Suitable for: Ages 14+ . Package Includes . 1 x UDI U830 RC Quadcopter . 1 x Transmitter . 1 x USB Charging Cable . 4 x Spare Blade . 1 x Balance Charger . 1 x Battery . 1 x User Manual. .